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Finding the Fourth Proportional to 288,717.90, 432,846.45 and 122,369.10

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Solution

The fourth proportional to 288,717.90, 432,846.45 and 122,369.10 is: 183,456.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,717.90 : 432,846.45 = 122,369.10 : x
  2. Step 2: Convert to fraction form
    288,717.90/432,846.45 = 122,369.10/x
  3. Step 3: Cross multiply
    288,717.90x = 432,846.45 × 122,369.10
  4. Step 4: Simplify right side
    288,717.90x = 52,967,030,524.70
  5. Step 5: Solve for x
    x = 52,967,030,524.70/288,717.90
  6. Step 6: Final answer
    x = 183,456.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.